She had tasted the consequences of insisting on something you knew you couldn't ask for.
The memory she tried so hard to forget made her think she would be lonely like this for the rest of her life, until she met him...
Slowly the two fell in love, but in the end they learned that the man planned to marry someone else...
Well, since you marry someone else, I don't have to do it with you. So she thought.
(PS: Everyone who is a good copywriter can just ignore it.)